package thread;

public class Demo17 {
    private static int sum1 = 0;
    private static int sum2 = 0;

    public static void main(String[] args) throws InterruptedException {
        long begin = System.currentTimeMillis();
        int[] array = new int[10000];

        for (int i = 0; i < array.length; i++) {
            array[i] = i;
        }

        Thread t1 = new Thread(() -> {
            for (int i = 0; i < array.length; i += 2) {
                sum1 += array[i];
            }
        });

        Thread t2 = new Thread(() -> {
            for (int i = 1; i < array.length; i += 2) {
                sum2 += array[i];
            }
        });

        t1.start();
        t2.start();
        t1.join();
        t2.join();
        System.out.println("sum1: " + sum1);
        System.out.println("sum2: " + sum2);
        System.out.println("sum: "+(sum1 + sum2));
        System.out.println("time: " + (System.currentTimeMillis() - begin) + "ms");
    }
}
